Latest edition of “Where’s Philae?”

They continue to search in the “landing strip” area:
but dedicated searches in that area have still turned up nada.

Rosetta’s mission now requires it to orbit further from the comet, so finding Philae is going to be much more difficult. Here’s the view from Rosetta’s current orbit:

As for the process of wake up, and assuming Philae survived the low temperatures in its new residence, the earliest that the lander team expect it to be warm enough to boot up is in late March. But it will likely be May or June before there is enough solar illumination to use its transmitter, and to re-establish a communications link with Rosetta – the lander needs about 17 Watts to wake up and say “hello”.